iPhone 4 1900mAh External Battery Case, the Thinnest External Battery for iPhone 4
Petite, convenient, easy to use, high capacity
Compatible with iPhone4
Use USB cable to charge power
4 LED power indicators

Output V: DC 5V
Output C: ≤ 700mA(0.7A)
Input V: 5V
Input C: ≤ 1000mA(1A)
Contain: 7WH(1900mAh)
Charging time: 4 to 6hs
Working temperature: -10 to 40
Storage temperature: -20to +50
Size: 126 x 63 x 15mm
Weight: 66.5g
Standby time: >380hs
Call time: Over 6.5hs at 3G
Surfing time: Over 6.5hs at 3G/over 7hs at Wi-Fi
Music playing: Over 28hs
Video playing: Over 8hs
iPhone is a trademark of Apple Inc.